دورية أكاديمية
أعرض في EDS

Metabolic Strategies Shared by Basement Residents of the Lost City Hydrothermal Field.

التفاصيل البيبلوغرافية
العنوان: Metabolic Strategies Shared by Basement Residents of the Lost City Hydrothermal Field.
المؤلفون: Brazelton WJ; School of Biological Sciences, University of Utahgrid.223827.e, Salt Lake City, Utah, USA., McGonigle JM; School of Biological Sciences, University of Utahgrid.223827.e, Salt Lake City, Utah, USA.; Bigelow Laboratory for Ocean Sciences, East Boothbay, Maine, USA., Motamedi S; School of Biological Sciences, University of Utahgrid.223827.e, Salt Lake City, Utah, USA., Pendleton HL; School of Biological Sciences, University of Utahgrid.223827.e, Salt Lake City, Utah, USA., Twing KI; School of Biological Sciences, University of Utahgrid.223827.e, Salt Lake City, Utah, USA., Miller BC; School of Biological Sciences, University of Utahgrid.223827.e, Salt Lake City, Utah, USA., Lowe WJ; School of Biological Sciences, University of Utahgrid.223827.e, Salt Lake City, Utah, USA., Hoffman AM; School of Biological Sciences, University of Utahgrid.223827.e, Salt Lake City, Utah, USA., Prator CA; School of Biological Sciences, University of Utahgrid.223827.e, Salt Lake City, Utah, USA., Chadwick GL; Department of Molecular and Cell Biology, University of California, Berkeley, California, USA., Anderson RE; Department of Biology, Carleton College, Northfield, Minnesota, USA., Thomas E; Department of Biology, Carleton College, Northfield, Minnesota, USA., Butterfield DA; Joint Institute for the Study of Atmosphere and Ocean, University of Washington, Seattle, Washington, USA., Aquino KA; Department of Earth Sciences, ETH Zurich, Zurich, Switzerland., Früh-Green GL; Department of Earth Sciences, ETH Zurich, Zurich, Switzerland., Schrenk MO; Department of Earth and Environmental Sciences, Michigan State Universitygrid.17088.36, East Lansing, Michigan, USA., Lang SQ; School of the Earth, Ocean, and Environment, University of South Carolina, Columbia, South Carolina, USA.
المصدر: Applied and environmental microbiology [Appl Environ Microbiol] 2022 Sep 13; Vol. 88 (17), pp. e0092922. Date of Electronic Publication: 2022 Aug 11.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.
اللغة: English
بيانات الدورية: Publisher: American Society for Microbiology Country of Publication: United States NLM ID: 7605801 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1098-5336 (Electronic) Linking ISSN: 00992240 NLM ISO Abbreviation: Appl Environ Microbiol Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Washington, American Society for Microbiology.
مواضيع طبية MeSH: Ecosystem* , Hydrothermal Vents*/microbiology, Archaea/genetics ; Archaea/metabolism ; Bacteria/genetics ; Bacteria/metabolism ; Formates/metabolism ; Hydrogen/metabolism ; Sulfates/metabolism
مستخلص: Alkaline fluids venting from chimneys of the Lost City hydrothermal field flow from a potentially vast microbial habitat within the seafloor where energy and organic molecules are released by chemical reactions within rocks uplifted from Earth's mantle. In this study, we investigated hydrothermal fluids venting from Lost City chimneys as windows into subseafloor environments where the products of geochemical reactions, such as molecular hydrogen (H 2 ), formate, and methane, may be the only available sources of energy for biological activity. Our deep sequencing of metagenomes and metatranscriptomes from these hydrothermal fluids revealed a few key species of archaea and bacteria that are likely to play critical roles in the subseafloor microbial ecosystem. We identified a population of Thermodesulfovibrionales (belonging to phylum Nitrospirota ) as a prevalent sulfate-reducing bacterium that may be responsible for much of the consumption of H 2 and sulfate in Lost City fluids. Metagenome-assembled genomes (MAGs) classified as Methanosarcinaceae and Candidatus Bipolaricaulota were also recovered from venting fluids and represent potential methanogenic and acetogenic members of the subseafloor ecosystem. These genomes share novel hydrogenases and formate dehydrogenase-like sequences that may be unique to hydrothermal environments where H 2 and formate are much more abundant than carbon dioxide. The results of this study include multiple examples of metabolic strategies that appear to be advantageous in hydrothermal and subsurface alkaline environments where energy and carbon are provided by geochemical reactions. IMPORTANCE The Lost City hydrothermal field is an iconic example of a microbial ecosystem fueled by energy and carbon from Earth's mantle. Uplift of mantle rocks into the seafloor can trigger a process known as serpentinization that releases molecular hydrogen (H 2 ) and creates unusual environmental conditions where simple organic carbon molecules are more stable than dissolved inorganic carbon. This study provides an initial glimpse into the kinds of microbes that live deep within the seafloor where serpentinization takes place, by sampling hydrothermal fluids exiting from the Lost City chimneys. The metabolic strategies that these microbes appear to be using are also shared by microbes that inhabit other sites of serpentinization, including continental subsurface environments and natural springs. Therefore, the results of this study contribute to a broader, interdisciplinary effort to understand the general principles and mechanisms by which serpentinization-associated processes can support life on Earth and perhaps other worlds.
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فهرسة مساهمة: Keywords: acetogenesis; formate; hydrogenase; hydrothermal; metagenomics; methanogenesis; serpentinization; sulfate reduction
المشرفين على المادة: 0 (Formates)
0 (Sulfates)
0YIW783RG1 (formic acid)
7YNJ3PO35Z (Hydrogen)
تواريخ الأحداث: Date Created: 20220811 Date Completed: 20220915 Latest Revision: 20240904
رمز التحديث: 20240904
مُعرف محوري في PubMed: PMC9469722
DOI: 10.1128/aem.00929-22
PMID: 35950875
قاعدة البيانات: MEDLINE
الوصف
تدمد:1098-5336
DOI:10.1128/aem.00929-22